| 摘要 |
PURPOSE:To provide a heatproof wheel cap which can improve the surface smoothness and the dimensional stability. CONSTITUTION:In a wheel cap 10 obtained by injection-molding a resin composition of (A) 20-80wt.% crystalline polypropylene, (B) 5-30wt.% ethylene propylene synthetic rubber and (C) 15-50wt.% flat mica particles, its heat resistance can be increased, and the surface smoothnes and the dimensional stability can be improved by the mica particles. |
